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Miniature Ball Bearings with Extended Inner Ring RW3zz

Miniature Ball Bearings with Extended Inner Ring RW3zz

The RW3zz is a miniature ball bearing with an extended inner ring, measuring 0.1875″ in bore diameter and 0.5″ in outer diameter. Made from chrome steel, it’s designed for radial loads and features a shielded construction for added protection.

With a dynamic radial load capacity of 249 lbf, it spins smoothly at speeds up to 43,000 RPM. The stainless steel cage and shielded design help keep dirt out while maintaining performance.

Its extended inner ring makes installation easier, especially in tight spaces. The bearing requires lubrication and operates in temperatures from -86°F to 230°F.

Ideal for small machinery or precision instruments where space is limited. Compliant with RoHS and REACH standards, it’s a reliable choice for various applications. Weighing just 2.95g, it’s lightweight yet durable.

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Product Parameters

  • Part Number RW3zz
  • Brand TFL
  • Interchangeable EZO
  • Bore Dia 0.1875"
  • Bore Dia Tolerance -0.0003" to 0"
  • Outer Dia 0.5"
  • Outer Dia Tolerance -0.0003" to 0"
  • Width 0.196"
  • Width Tolerance -0.005" to 0"
  • External Diameter On Inner Ring 0.276"
  • Inner Ring Width 0.2273"
  • Ball Qty 7
  • Ball Dia 0.0937"
  • Radial Clearance 0.00008" to 0.0005"
  • System of Measurement Inch
  • Seal Type Shielded
  • Bearing Type Ball
  • For Load Direction Radial
  • Construction Single Row
  • Inner Ring Type Extended
  • Tolerance Class ABEC1
  • Radial Clearance Trade No MC3
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Stainless Steel
  • Shield Material 300 Series Stainless Steel
  • Dynamic Radial Load 249 lbf
  • Static Radial Load 88 lbf
  • Temperature Range -86 to 230 °F
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Max Speed 43000 rpm
  • Weight 2.95 g
  • Price（$） 2.655
Miniature Ball Bearings with Extended Inner Ring RW3zz dimension drawing
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Features

Why Choose RW3zz Bearing for Precision Tasks?

RW3zz Bearing features an extended inner ring design, making it ideal for precise radial load applications.
Its chrome steel construction ensures durability, while the stainless steel cage maintains smooth operation.

With a dynamic radial load capacity of 249 lbf, RW3zz Bearing performs reliably in high-speed environments.
The shielded design protects against contaminants, extending its service life.

RW3zz Bearing operates efficiently within a wide temperature range of -86 to 230 °F.
Its ABEC1 tolerance and precise radial clearance ensure consistent performance in miniature applications.

Application

Common Applications of RW3zz Bearing
RW3zz Bearing is commonly used in small electric motors, where its shielded design helps keep out dust and debris. The extended inner ring makes it easier to install in tight spaces, which is handy for compact devices.

In automation systems, RW3zz Bearing works well in conveyor belt rollers and small robotic arms. Its high-speed capability ensures smooth movement, while the stainless steel cage adds durability for continuous operation.

For consumer electronics like printers and small fans, RW3zz Bearing’s lightweight design and precise tolerances help reduce noise and vibration. The chrome steel construction also ensures long-lasting performance in everyday use.

Medical devices such as dental tools and lab equipment benefit from RW3zz Bearing’s reliable radial load handling. The ABEC1 tolerance class provides sufficient precision for these sensitive applications without unnecessary cost.

In hobbyist projects like RC cars or drones, RW3zz Bearing offers a good balance of performance and affordability. The inch sizing makes it compatible with many American-made components, simplifying repairs and upgrades.

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